4056631 has 4 divisors (see below), whose sum is σ = 4064472. Its totient is φ = 4048792.

The previous prime is 4056623. The next prime is 4056641. The reversal of 4056631 is 1366504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4056631 - 2³ = 4056623 is a prime.

It is a super-2 number, since 2×4056631² = 32912510140322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4056596 and 4056605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4056601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3085 + ... + 4198.

It is an arithmetic number, because the mean of its divisors is an integer number (1016118).

Almost surely, 2^4056631 is an apocalyptic number.

4056631 is a deficient number, since it is larger than the sum of its proper divisors (7841).

4056631 is an equidigital number, since it uses as much as digits as its factorization.

4056631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7840.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 4056631 is about 2014.1079911465. The cubic root of 4056631 is about 159.4857316338.

The spelling of 4056631 in words is "four million, fifty-six thousand, six hundred thirty-one".